CF-B Models

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CF-B Models Specifications

CF-B Models
CF-B(-H) Models

CF-B Models

[Specifications]

Model	Torque		Misalignment			Max. rotation speed ［min^-1］	Static torsional stiffness ［N・m/rad］	Moment of inertia ［kg・m²］	Mass ［kg］
Model	Nominal ［N・m］	Max. ［N・m］	Parallel ［mm］	Angular ［°］	Axial ［mm］	Max. rotation speed ［min^-1］	Static torsional stiffness ［N・m/rad］	Moment of inertia ［kg・m²］	Mass ［kg］
CF-B-070	30	60	0.5	1.0	±1	10000	1.30×10³	2.80×10^-4	0.7
CF-B-080	60	120	0.5	1.0	±1	9000	1.53×10³	3.39×10^-4	0.8
CF-B-100	120	240	0.5	1.0	±1	7500	3.51×10³	1.34×10^-3	2.0
CF-B-120	250	500	0.5	1.0	±1	6000	7.90×10³	3.34×10^-3	3.4
CF-B-140	400	800	0.5	1.0	±1	5000	1.34×10⁴	7.02×10^-3	5.4
CF-B-165	600	1200	0.5	1.0	±1	4000	2.36×10⁴	1.78×10^-2	8.7
CF-B-185	1000	2000	0.5	1.0	±1	3600	1.02×10⁵	3.67×10^-2	13.8

*Max. rotation speed does not take into account dynamic balance.

*Static torsional stiffness values given are from measurements taken at 20℃ .

*Values for moment of inertia and mass are those when the cylindrical hubs have pilot bores.

[Dimensions]

Unit ［mm］

Model	d1, d2			D	N	L1	L2	S	E	F	M
Model	Pilot bore	Min.	Max.	D	N	L1	L2	S	E	F	M
CF-B-070	9	10	30	72	45	28	62	6	14	40	4-M8
CF-B-080	12	14	30	76	45	30	66	6	16	42	6-M8
CF-B-100	12	14	38	98	60	42	90	6	24	64.5	6-M10
CF-B-120	15	16	48	120	70	50	106	6	28	76	6-M12
CF-B-140	15	16	55	138	85	55	116	6	30	83	6-M14
CF-B-165	19	20	60	165	100	65	138	8	36	99	6-M16
CF-B-185	29	30	80	187	115	80	170	10	45	123	6-M20

*Pilot bores are to be drilled into the part. Minimum values for d1 and d2 are given by the minimum bore diameter values in the MIKI PULLEY standard hole-drilling standards and maximum values from the maximum allowable drilled bore diameters.

*The nominal diameter for the bolt M is equal to the quantity minus the nominal diameter of the screw thread.

[Standard Hole-drilling Standards]

Unit ［mm］

Models compliant with the old JIS standard (class 2) JIS B 1301 1959					Models compliant with the new JIS standard (H9) JIS B 1301 1996					Models compliant with the motor standard JIS C 4210 2001
Nominal bore diameter	Bore diameter (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)	Nominal bore diameter	Bore diameter (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)	Nominal bore diameter	Bore diameter (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)
Nominal bore diameter	Tolerance H7, H8	Tolerance E9	-		Nominal bore diameter	Tolerance H7	Tolerance H9	-		Nominal bore diameter	Tolerance G7, F7	Tolerance H9	-
10	10^+0.022₀	-	-	2-M4	-	-	-	-	-	-	-	-	-	-
11	11^+0.018₀	-	-	2-M4	-	-	-	-	-	-	-	-	-	-
12	12^+0.018₀	4^+0.050_+0.020	13.5^+0.3₀	2-M4	12H	12^+0.018₀	4^+0.030₀	13.8^+0.3₀	2-M4	-	-	-	-	-
14	14^+0.018₀	5^+0.050_+0.020	16.0^+0.3₀	2-M4	14H	14^+0.018₀	5^+0.030₀	16.3^+0.3₀	2-M4	14N	14^+0.024_+0.006	5^+0.030₀	16.3^+0.3₀	2-M4
15	15^+0.018₀	5^+0.050_+0.020	17.0^+0.3₀	2-M4	15H	15^+0.018₀	5^+0.030₀	17.3^+0.3₀	2-M4	-	-	-	-	-
16	16^+0.018₀	5^+0.050_+0.020	18.0^+0.3₀	2-M4	16H	16^+0.018₀	5^+0.030₀	18.3^+0.3₀	2-M4	-	-	-	-	-
17	17^+0.018₀	5^+0.050_+0.020	19.0^+0.3₀	2-M4	17H	17^+0.018₀	5^+0.030₀	19.3^+0.3₀	2-M4	-	-	-	-	-
18	18^+0.018₀	5^+0.050_+0.020	20.0^+0.3₀	2-M4	18H	18^+0.018₀	6^+0.030₀	20.8^+0.3₀	2-M5	-	-	-	-	-
19	19^+0.021₀	5^+0.050_+0.020	21.0^+0.3₀	2-M4	19H	19^+0.021₀	6^+0.030₀	21.8^+0.3₀	2-M5	19N	19^+0.028_+0.007	6^+0.030₀	21.8^+0.3₀	2-M5
20	20^+0.021₀	5^+0.050_+0.020	22.0^+0.3₀	2-M4	20H	20^+0.021₀	6^+0.030₀	22.8^+0.3₀	2-M5	-	-	-	-	-
22	22^+0.021₀	7^+0.061_+0.025	25.0^+0.3₀	2-M6	22H	22^+0.021₀	6^+0.030₀	24.8^+0.3₀	2-M5	-	-	-	-	-
24	24^+0.021₀	7^+0.061_+0.025	27.0^+0.3₀	2-M6	24H	24^+0.021₀	8^+0.036₀	27.3^+0.3₀	2-M6	24N	24^+0.028_+0.007	8^+0.036₀	27.3^+0.3₀	2-M6
25	25^+0.021₀	7^+0.061_+0.025	28.0^+0.3₀	2-M6	25H	25^+0.021₀	8^+0.036₀	28.3^+0.3₀	2-M6	-	-	-	-	-
28	28^+0.021₀	7^+0.061_+0.025	31.0^+0.3₀	2-M6	28H	28^+0.021₀	8^+0.036₀	31.3^+0.3₀	2-M6	28N	28^+0.028_+0.007	8^+0.036₀	31.3^+0.3₀	2-M6
30	30^+0.021₀	7^+0.061_+0.025	33.0^+0.3₀	2-M6	30H	30^+0.021₀	8^+0.036₀	33.3^+0.3₀	2-M6	-	-	-	-	-
32	32^+0.025₀	10^+0.061_+0.025	35.5^+0.3₀	2-M8	32H	32^+0.025₀	10^+0.036₀	35.3^+0.3₀	2-M8	-	-	-	-	-
35	35^+0.025₀	10^+0.061_+0.025	38.5^+0.3₀	2-M8	35H	35^+0.025₀	10^+0.036₀	38.3^+0.3₀	2-M8	-	-	-	-	-
38	38^+0.025₀	10^+0.061_+0.025	41.5^+0.3₀	2-M8	38H	38^+0.025₀	10^+0.036₀	41.3^+0.3₀	2-M8	38N	38^+0.050_+0.025	10^+0.036₀	41.3^+0.3₀	2-M8
40	40^+0.025₀	10^+0.061_+0.025	43.5^+0.3₀	2-M8	40H	40^+0.025₀	12^+0.043₀	43.3^+0.3₀	2-M8	-	-	-	-	-
42	42^+0.025₀	12^+0.075_+0.032	45.5^+0.3₀	2-M8	42H	42^+0.025₀	12^+0.043₀	45.3^+0.3₀	2-M8	42N	42^+0.050_+0.025	12^+0.043₀	45.3^+0.3₀	2-M8
45	45^+0.025₀	12^+0.075_+0.032	48.5^+0.3₀	2-M8	45H	45^+0.025₀	14^+0.043₀	48.8^+0.3₀	2-M10	-	-	-	-	-
48	48^+0.025₀	12^+0.075_+0.032	51.5^+0.3₀	2-M8	48H	48^+0.025₀	14^+0.043₀	51.8^+0.3₀	2-M10	48N	48^+0.050_+0.025	14^+0.043₀	51.8^+0.3₀	2-M10
50	50^+0.025₀	12^+0.075_+0.032	53.5^+0.3₀	2-M8	50H	50^+0.025₀	14^+0.043₀	53.8^+0.3₀	2-M10	-	-	-	-	-
55	55^+0.030₀	15^+0.075_+0.032	60.0^+0.3₀	2-M10	55H	55^+0.030₀	16^+0.043₀	59.3^+0.3₀	2-M10	55N	55^+0.060_+0.030	16^+0.043₀	59.3^+0.3₀	2-M10
56	56^+0.030₀	15^+0.075_+0.032	61.0^+0.3₀	2-M10	56H	56^+0.030₀	16^+0.043₀	60.3^+0.3₀	2-M10	-	-	-	-	-
60	60^+0.030₀	15^+0.075_+0.032	65.0^+0.3₀	2-M10	60H	60^+0.030₀	18^+0.043₀	64.4^+0.3₀	2-M10	60N	60^+0.060_+0.030	18^+0.043₀	64.4^+0.3₀	2-M10
63	63^+0.030₀	18^+0.075_+0.032	69.0^+0.3₀	2-M10	18H	63^+0.030₀	18^+0.043₀	67.4^+0.3₀	2-M10	-	-	-	-	-
65	65^+0.030₀	18^+0.075_+0.032	71.0^+0.3₀	2-M10	65H	65^+0.030₀	18^+0.043₀	69.4^+0.3₀	2-M10	65N	65^+0.060_+0.030	18^+0.043₀	69.4^+0.3₀	2-M10

*All standards starting from ø11 are the same as those in the old JIS standards column.

*Positions of set screws and keyways are not on the same plane.

*Set screws are included with the product.

*Positioning precision for keyway milling is determined by sight.

*Contact Miki Pulley when the keyway requires a positioning precision for a particular flange hub.

*Consult the technical documentation at the end of this volume for standard dimensions for bore drilling other than those given here.

[Set screw position]

Model	Distance from edge［mm］
CF-B-070	7
CF-B-080	8
CF-B-100	10
CF-B-120	10
CF-B-140	10
CF-B-165	15
CF-B-185	15

CF-B(-H) Models

[Specifications]

Model	Torque		Misalignment			Max. rotation speed ［min^-1］	Static torsional stiffness ［N・m/rad］	Moment of inertia ［kg・m²］	Mass ［kg］
Model	Nominal ［N・m］	Max. ［N・m］	Parallel ［mm］	Angular ［°］	Axial ［mm］	Max. rotation speed ［min^-1］	Static torsional stiffness ［N・m/rad］	Moment of inertia ［kg・m²］	Mass ［kg］
CF-B-070-H	45	60	0.3	0.5	±1	10000	2.76×10³	2.80×10^-4	0.7
CF-B-080-H	85	120	0.3	0.5	±1	9000	4.15×10³	3.39×10^-4	0.8
CF-B-100-H	170	240	0.3	0.5	±1	7500	9.49×10³	1.34×10^-3	2.0
CF-B-120-H	350	500	0.3	0.5	±1	6000	2.03×10⁴	3.34×10^-3	3.4
CF-B-140-H	560	800	0.3	0.5	±1	5000	3.44×10⁴	7.02×10^-3	5.4
CF-B-165-H	850	1200	0.3	0.5	±1	4000	5.24×10⁴	1.78×10^-2	8.7
CF-B-185-H	1400	2000	0.3	0.5	±1	3600	2.53×10⁵	3.67×10^-2	13.8

*Max. rotation speed does not take into account dynamic balance

*Static torsional stiff ness values given are from measurements taken at 20℃ .

*Values for moment of inertia and mass are those when the cylindrical hubs have pilot bores.

[Dimensions]

Unit ［mm］

Model	d1, d2			D	N	L1	L2	S	E	F	M
Model	Pilot bore	Min.	Max.	D	N	L1	L2	S	E	F	M
CF-B-070	9	10	30	72	45	28	62	6	14	40	4-M8
CF-B-080	12	14	30	76	45	30	66	6	16	42	6-M8
CF-B-100	12	14	38	98	60	42	90	6	24	64.5	6-M10
CF-B-120	15	16	48	120	70	50	106	6	28	76	6-M12
CF-B-140	15	16	55	138	85	55	116	6	30	83	6-M14
CF-B-165	19	20	60	165	100	65	138	8	36	99	6-M16
CF-B-185	29	30	80	187	115	80	170	10	45	123	6-M20

*The nominal diameter for the bolt M is equal to the quantity minus the nominal diameter of the screw thread.

[Standard Hole-drilling Standards]

Unit ［mm］

Models compliant with the old JIS standard (class 2) JIS B 1301 1959					Models compliant with the new JIS standard (H9) JIS B 1301 1996					Models compliant with the motor standard JIS C 4210 2001
Nominal bore diameter	Bore diameter (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)	Nominal bore diameter	Bore diameter (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)	Nominal bore diameter	Bore diameter (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)
Nominal bore diameter	Tolerance H7, H8	Tolerance E9	-		Nominal bore diameter	Tolerance H7	Tolerance H9	-		Nominal bore diameter	Tolerance G7, F7	Tolerance H9	-
10	10^+0.022₀	-	-	2-M4	-	-	-	-	-	-	-	-	-	-
11	11^+0.018₀	-	-	2-M4	-	-	-	-	-	-	-	-	-	-
12	12^+0.018₀	4^+0.050_+0.020	13.5^+0.3₀	2-M4	12H	12^+0.018₀	4^+0.030₀	13.8^+0.3₀	2-M4	-	-	-	-	-
14	14^+0.018₀	5^+0.050_+0.020	16.0^+0.3₀	2-M4	14H	14^+0.018₀	5^+0.030₀	16.3^+0.3₀	2-M4	14N	14^+0.024_+0.006	5^+0.030₀	16.3^+0.3₀	2-M4
15	15^+0.018₀	5^+0.050_+0.020	17.0^+0.3₀	2-M4	15H	15^+0.018₀	5^+0.030₀	17.3^+0.3₀	2-M4	-	-	-	-	-
16	16^+0.018₀	5^+0.050_+0.020	18.0^+0.3₀	2-M4	16H	16^+0.018₀	5^+0.030₀	18.3^+0.3₀	2-M4	-	-	-	-	-
17	17^+0.018₀	5^+0.050_+0.020	19.0^+0.3₀	2-M4	17H	17^+0.018₀	5^+0.030₀	19.3^+0.3₀	2-M4	-	-	-	-	-
18	18^+0.018₀	5^+0.050_+0.020	20.0^+0.3₀	2-M4	18H	18^+0.018₀	6^+0.030₀	20.8^+0.3₀	2-M5	-	-	-	-	-
19	19^+0.021₀	5^+0.050_+0.020	21.0^+0.3₀	2-M4	19H	19^+0.021₀	6^+0.030₀	21.8^+0.3₀	2-M5	19N	19^+0.028_+0.007	6^+0.030₀	21.8^+0.3₀	2-M5
20	20^+0.021₀	5^+0.050_+0.020	22.0^+0.3₀	2-M4	20H	20^+0.021₀	6^+0.030₀	22.8^+0.3₀	2-M5	-	-	-	-	-
22	22^+0.021₀	7^+0.061_+0.025	25.0^+0.3₀	2-M6	22H	22^+0.021₀	6^+0.030₀	24.8^+0.3₀	2-M5	-	-	-	-	-
24	24^+0.021₀	7^+0.061_+0.025	27.0^+0.3₀	2-M6	24H	24^+0.021₀	8^+0.036₀	27.3^+0.3₀	2-M6	24N	24^+0.028_+0.007	8^+0.036₀	27.3^+0.3₀	2-M6
25	25^+0.021₀	7^+0.061_+0.025	28.0^+0.3₀	2-M6	25H	25^+0.021₀	8^+0.036₀	28.3^+0.3₀	2-M6	-	-	-	-	-
28	28^+0.021₀	7^+0.061_+0.025	31.0^+0.3₀	2-M6	28H	28^+0.021₀	8^+0.036₀	31.3^+0.3₀	2-M6	28N	28^+0.028_+0.007	8^+0.036₀	31.3^+0.3₀	2-M6
30	30^+0.021₀	7^+0.061_+0.025	33.0^+0.3₀	2-M6	30H	30^+0.021₀	8^+0.036₀	33.3^+0.3₀	2-M6	-	-	-	-	-
32	32^+0.025₀	10^+0.061_+0.025	35.5^+0.3₀	2-M8	32H	32^+0.025₀	10^+0.036₀	35.3^+0.3₀	2-M8	-	-	-	-	-
35	35^+0.025₀	10^+0.061_+0.025	38.5^+0.3₀	2-M8	35H	35^+0.025₀	10^+0.036₀	38.3^+0.3₀	2-M8	-	-	-	-	-
38	38^+0.025₀	10^+0.061_+0.025	41.5^+0.3₀	2-M8	38H	38^+0.025₀	10^+0.036₀	41.3^+0.3₀	2-M8	38N	38^+0.050_+0.025	10^+0.036₀	41.3^+0.3₀	2-M8
40	40^+0.025₀	10^+0.061_+0.025	43.5^+0.3₀	2-M8	40H	40^+0.025₀	12^+0.043₀	43.3^+0.3₀	2-M8	-	-	-	-	-
42	42^+0.025₀	12^+0.075_+0.032	45.5^+0.3₀	2-M8	42H	42^+0.025₀	12^+0.043₀	45.3^+0.3₀	2-M8	42N	42^+0.050_+0.025	12^+0.043₀	45.3^+0.3₀	2-M8
45	45^+0.025₀	12^+0.075_+0.032	48.5^+0.3₀	2-M8	45H	45^+0.025₀	14^+0.043₀	48.8^+0.3₀	2-M10	-	-	-	-	-
48	48^+0.025₀	12^+0.075_+0.032	51.5^+0.3₀	2-M8	48H	48^+0.025₀	14^+0.043₀	51.8^+0.3₀	2-M10	48N	48^+0.050_+0.025	14^+0.043₀	51.8^+0.3₀	2-M10
50	50^+0.025₀	12^+0.075_+0.032	53.5^+0.3₀	2-M8	50H	50^+0.025₀	14^+0.043₀	53.8^+0.3₀	2-M10	-	-	-	-	-
55	55^+0.030₀	15^+0.075_+0.032	60.0^+0.3₀	2-M10	55H	55^+0.030₀	16^+0.043₀	59.3^+0.3₀	2-M10	55N	55^+0.060_+0.030	16^+0.043₀	59.3^+0.3₀	2-M10
56	56^+0.030₀	15^+0.075_+0.032	61.0^+0.3₀	2-M10	56H	56^+0.030₀	16^+0.043₀	60.3^+0.3₀	2-M10	-	-	-	-	-
60	60^+0.030₀	15^+0.075_+0.032	65.0^+0.3₀	2-M10	60H	60^+0.030₀	18^+0.043₀	64.4^+0.3₀	2-M10	60N	60^+0.060_+0.030	18^+0.043₀	64.4^+0.3₀	2-M10
63	63^+0.030₀	18^+0.075_+0.032	69.0^+0.3₀	2-M10	18H	63^+0.030₀	18^+0.043₀	67.4^+0.3₀	2-M10	-	-	-	-	-
65	65^+0.030₀	18^+0.075_+0.032	71.0^+0.3₀	2-M10	65H	65^+0.030₀	18^+0.043₀	69.4^+0.3₀	2-M10	65N	65^+0.060_+0.030	18^+0.043₀	69.4^+0.3₀	2-M10